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rvalue ref overloads do not return by value

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This commit is contained in:
Andrzej Krzemienski
2014-07-10 13:49:36 +02:00
parent 18b8c4bb18
commit fea4882f24
5 changed files with 25 additions and 74 deletions
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20
include/boost/optional/optional.hpp
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@ -1005,12 +1005,9 @@ class optional : public optional_detail::optional_base<T>
// the behaviour is UNDEFINED
// No-throw
#ifndef BOOST_NO_CXX11_REF_QUALIFIERS
reference_const_type operator *() const& { return this->get() ; }
reference_type operator *() & { return this->get() ; }
value_type operator *() && { return boost::move(this->get()) ; }
#ifdef BOOST_CLANG
value_type operator *() const&& { return boost::move(this->get()) ; }
#endif
reference_const_type operator *() const& { return this->get() ; }
reference_type operator *() & { return this->get() ; }
reference_type_of_temporary_wrapper operator *() && { return boost::move(this->get()) ; }
#else
reference_const_type operator *() const { return this->get() ; }
reference_type operator *() { return this->get() ; }
@ -1033,22 +1030,13 @@ class optional : public optional_detail::optional_base<T>
throw_exception(bad_optional_access());
}
value_type value() &&
reference_type_of_temporary_wrapper value() &&
{
if (this->is_initialized())
return boost::move(this->get()) ;
else
throw_exception(bad_optional_access());
}
#ifdef BOOST_CLANG
value_type value() const&&
{
if (this->is_initialized())
return boost::move(this->get()) ;
else
throw_exception(bad_optional_access());
}
#endif
#else
reference_const_type value() const